CVE-2024-57997

Kernel memory corruption via undersized channel survey allocation

Published Feb 27, 2025 · Updated Aug 5, 2026

Memory corruption in the wcn36xx Wi-Fi driver in affected Linux kernel versions allows adjacent attackers to alter kernel memory. wcn36xx_probe allocates only one byte per channel for an array of wcn36xx_chan_survey structures, so receive-path updates write beyond the allocation and empty-channel survey reads return uninitialized heap data. Exploitation requires an active wcn36xx radio within transmitter range; bounded consequences include kernel-memory disclosure, corruption, and a kernel panic.

CVSS severity8.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory corruption in the wcn36xx Wi-Fi driver in affected Linux kernel versions allows adjacent attackers to alter kernel memory. wcn36xx_probe allocates only one byte per channel for an array of wcn36xx_chan_survey structures, so receive-path updates write beyond the allocation and empty-channel survey reads return uninitialized heap data. Exploitation requires an active wcn36xx radio within transmitter range; bounded consequences include kernel-memory disclosure, corruption, and a kernel panic.

The record

CVE
CVE-2024-57997
Published
Feb 27, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=29696e0aa413b9d56558731aae3806d7cff48d36 <34cd2817708aec51ef1a6c007e0d6d5342a025d7
  2. Affected versionversion=29696e0aa413b9d56558731aae3806d7cff48d36 <6200d947f050efdba4090dfefd8a01981363d954
  3. Affected versionversion=29696e0aa413b9d56558731aae3806d7cff48d36 <64c4dcaeac1dc1030e47883b04a617ca9a4f164e
  4. Affected versionversion=29696e0aa413b9d56558731aae3806d7cff48d36 <ae68efdff7a7a42ab251cac79d8713de6f0dbaa0
  5. Affected versionversion=29696e0aa413b9d56558731aae3806d7cff48d36 <e95f9c408ff8311f75eeabc8acf34a66670d8815
  6. Affected versionversion=5.18

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=29696e0aa413b9d56558731aae3806d7cff48d36 <34cd2817708aec51ef1a6c007e0d6d5342a025d7; version=29696e0aa413b9d56558731aae3806d7cff48d36 <6200d947f050efdba4090dfefd8a01981363d954; version=29696e0aa413b9d56558731aae3806d7cff48d36 <64c4dcaeac1dc1030e47883b04a617ca9a4f164e; version=29696e0aa413b9d56558731aae3806d7cff48d36 <ae68efdff7a7a42ab251cac79d8713de6f0dbaa0; version=29696e0aa413b9d56558731aae3806d7cff48d36 <e95f9c408ff8311f75eeabc8acf34a66670d8815; version=5.18

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.8Linux kernel CVE teamCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo